# US 9,883,118 B2 · Method of image correction and image capturing device thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,883,118 B2 - Document ID: US9883118B2 - Status: Granted - Kind: B2 - Application number: 14/609,432 - Filed: 2015-01-30 - Published: 2015-09-24 - Granted: 2018-01-30 - Earliest claimed: 2014-03-24 - Assignees: HTC Corporation - Applicants: HTC Corporation - Inventors: Hsin-Ti Chueh; Jing-Lung Wu; Fu-Chang Tseng; Wei-Chih Kuo - Web page: https://patentgrep.com/patent/US9883118B2 ## CPC - H04N 5/2628: {Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation} - G06T 7/33: using feature-based methods - G06T 7/593: from stereo images - H04N 13/122: Improving the three-dimensional [3D] impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues (H04N13/128 takes precedence) - H04N 13/133: Equalising the characteristics of different image components, e.g. their average brightness or colour balance - H04N 13/239: using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular distance (H04N13/243 takes precedence) - H04N 13/25: using two or more image sensors with different characteristics other than in their location or field of view, e.g. having different resolutions or colour pickup characteristics; using image signals from one sensor to control the characteristics of another sensor - G06T 2207/10012: Stereo images - H04N 2013/0081: {Depth or disparity estimation from stereoscopic image signals} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract A method for an image capturing device is disclosed. The method includes capturing a first image and a second image; adjusting a first resolution of the first image to a second resolution of the second image; cropping a first image part corresponding to the second image in the first image via comparing feature points between the first image and the second image, for generating a third image; detecting non-ideal effects between the second image and the third image; compensating the non-ideal effects, for generating a first corrected image and a second corrected image; and calculating a depth information based on the first corrected image and the second corrected image. ## Claims ### Claim 1 A method for an image capturing device, comprising: acquiring a first image and a second image; adjusting a first resolution of the first image to a second resolution of the second image; cropping a first image part corresponding to the second image in the first image via comparing feature points between the first image and the second image, for generating a third image; detecting non-ideal effects between the second image and the third image; compensating the non-ideal effects, for generating a first corrected image and a second corrected image; calculating a depth information based on the first corrected image and the second corrected image; and adjusting the depth information according to focuses of capturing the first image and the second image when a difference between an estimated distance corresponding to the focus of capturing the first image and a statistic of disparities of the depth information exceeds a threshold. ### Claim 2 (depends on 1) The method of claim 1, wherein the first image and the second image are respectively acquired by a first image capturing unit and a second image capturing unit of the image capturing device. ### Claim 3 (depends on 2) The method of claim 2, wherein the first image capturing unit and the second image capturing unit are transversely configured. ### Claim 4 (depends on 2) The method of claim 2, wherein the first image capturing unit and the second image capturing unit have different resolutions. ### Claim 5 (depends on 1) The method of claim 1, wherein the first image and the second image are captured by a same image capturing unit. ### Claim 6 (depends on 1) The method of claim 1, the step of adjusting the first resolution of the first image to the second resolution of the second image comprises: downscaling or upscaling the first resolution of the first image to the second resolution of the second image. ### Claim 7 (depends on 1) The method of claim 1, further comprising: compensating curve distortions of the first image and the second image before adjusting the first resolution of the first image to the second resolution of the second image. ### Claim 8 An image capturing device, comprising: a computing unit; and a storage unit, for storing a program code used for instructing the computing unit to perform the following steps: acquiring a first image and a second image; adjusting a first resolution of the first image to a second resolution of the second image; cropping a first image part corresponding to the second image in the first image via comparing feature points between the first image and the second image, for generating a third image; detecting non-ideal effects between the second image and the third image; compensating the non-ideal effects, for generating a first corrected image and a second corrected image; calculating a depth information based on the first corrected image and the second corrected image; and adjusting the depth information according to focuses of capturing the first image and the second image when a difference between an estimated distance corresponding to the focus of capturing the first image and a statistic of disparities of the depth information exceeds a threshold. ### Claim 9 (depends on 8) The image capturing device of claim 8, further comprising: a first image capturing unit, for capturing the first image; and a second image capturing unit, for capturing the second image. ### Claim 10 (depends on 9) The image capturing device of claim 9, wherein the first image capturing unit and the second image capturing unit are transversely configured when capturing the first image and the second image. ### Claim 11 (depends on 9) The image capturing device of claim 9, wherein the first image capturing unit and the second image capturing unit have different resolutions. ### Claim 12 (depends on 8) The image capturing device of claim 8, wherein the first image and the second image are captured by a same image capturing unit. ### Claim 13 (depends on 8) The image capturing device of claim 8, the step of adjusting the first resolution of the first image to the second resolution of the second image comprises: downscaling or upscaling the first resolution of the first image to the second resolution of the second image. ### Claim 14 (depends on 8) The image capturing device of claim 8, wherein the program code further instructs the computing unit to compensate curve distortions of the first image and the second image before adjusting the first resolution of the first image to the second resolution of the second image.